Altitude Flashcards
What is altitude ?
The height above sea level
What occurs when altitude increases ?
(As altitude increases) the barometric pressure decreases.
The oxygen (%) remains the same but, the pressure reduces.
(therefore) there is a reduction in the rate of gaseous exchange (GE).
What does an increase in altitude lead to ?
(3 points)
- Decreased saturation of haemoglobin
- Decreased oxygen transportation to muscles
- Decreased diffusion of oxygen to muscle cells
What is the impact of an increase in altitude ?
(5points)
- Increased breathing rate (at/rest)
- Blood plasma decreases 25%, increasing blood viscosity
- Stroke volume decreases, heart rate increases
- Maximum cardiac output decreases at high intensities
- Reduced metabolic processes in muscle cells
What is the effect of an increase in altitude ?
(4 points)
- Reduction in VO2 max, reduction in aerobic capacity
- performance endurance activities at altitude become harder
- Early fatigue
- Increased demand for anaerobic systems
What is the O2 availability at sea level ?
100%
What is the O2 availability at medium altitude (1500m) ?
84%
What is the O2 availability at high altitude (2400m) ?
76%
What is the O2 availability at extreme altitude (5500m) ?
52%
How many days of training are required for 1000m - 2000m ?
3 - 5 days
What are the required days of training for
2000m - 3000m ?
2 weeks
What are the required days of training for 3000m+ ?
2 weeks +
